html{
    height: 100%;
}
body{
    margin: 0;
    padding: 0;
    background-image: url("/image/oarmpxyx.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
img{
    width: 60px;
}
.sign-up-form{
    position: relative;
    width:300px;
    box-shadow: 0 10px 10px 0 rgba(0,0,0,0.7);
    background-color:rgba(0,0,0,0.5);
    padding: 20px;
    margin: 15% auto;
    text-align: center;
}

.sign-up-form::before{
    content: "";
    background: url("/image/gerenzhongxin1.png");
    background-size: 100px;
    width: 100px;
    height: 100px;
    position: absolute;
    top:-50px;
    left: 35%;
}
.sign-up-form h3{
    height: 70px;
    color: #fff;
    line-height: 70px;
    margin-bottom: 0px;
}
.sign-up-form h4{
    margin: 0px;
    margin-left: 10px;
    text-align: left;
    color: #fff;
    font-size: 1.5ex;
}
.input-box{
    color: #fff;
    padding: 10px;
    margin: 10px auto;
    width: 90%;
    border-top: 0px;
    border-left: 0px;
    border-right: 0px;
    outline: none;
    border-bottom: 1px solid #fff;
    background-color: transparent;;
}
.signup-btn{
    color: #000;
    width: 95%;
    margin-top: 10px;
    padding: 10px;
    border-radius: 20px;;
    outline: none;
}
a{
    display:block;
    height: 30px;
    width: 50px;
    line-height: 40px;
    color: white;
    text-decoration: none;
    font-size: 0.5px;
    text-align: left;
    margin:5px 10px 40px;
}
a:hover{
    color: rebeccapurple;
}